Connection for acousticons.



No. 843,890. PATENTED FEB. 12, 1907.

H. W. HAFF.

CONNECTION FOR AGOUSTIOONS. APPLIOATION FILED MAE.17, 1906.

warren srarns "Pan anr orat on.

ASSIGNQR T KELLEY M. N. Y. t

" @QNNEGTBQN oe aoonsrioows.

we. assess. r atented Feb. 12, rear Specification of Letters Patent. aiiaa naiea riti' 17,1906. sestiiioisoasea sembled within theacousticon-box in a neat and attractive way. Referring to .the arts aredesignated by the same referencesign wherever they occunl indicates theva- 'rious receivers of an acousticon set, each of which is securedopposite a suitahleopening To all whom it may concern:

Be it known. that I, HOWELL W. HAFF, a citizen of the United States,residing at Babylon, in the county of Suiiolk and St ate of New York,have invented certain new and useful Improvements in Connection forAcoustic'ons, of which the following is a full, clear, and ex-' actdescription. in the box 2 and which has a pair of terminal My inventionrelates to an arrangement wires 3 4. it is obvious that as many reto forconnecting the jvarious receivers of an 'ceiversl may be providedv asare necessary 1n acousticon to the battery wires or terminals.'any'particular instrument. in any case the The principal object of theinvention isto arrangement shown is preferable, where the provide aconnection which is neat in appear various receivers are grouped in thebox ance, easy to assemble, insured against around a common centralpoint 5.. g grounds and short circuits, and which can be At the pointfiI secure the metallic fixtures a connection employing cheapmetallicparts the various receiver and battery termihals.- 7 stamped ofsheet brass or metal and which For this purpose I employ in practice twocooperate to produce a highly efiicient coupsheet-metal plates 6 and 7,each of which has ling. z arms, respectively designated as 8 and 9,

With these and other objects-in view my' thereon. :Each of the. platesis perforated at invention consists in the construction, -com itscentral portion with holes 10 11., which are. 75 bin'ation, in'thelocation, and in the arrangeadapted to he in alinement with one another,ment of parts, as hereinafter set-forth and the holes 10 of the plate. 6being, however, shown, and finally particularly pointed out in smallerthan the holes 11 of the plate 7. 12 the ap ended claims. I v denotesmall perforated washers contained In tiie drawings,Figure 1 is aback orinside within the holes 11 and which have ,central 30 view of anacousticon having a connection openings adapted to register exactly withembodying the principles of my invention apthe holes 10 of the plate 6.13 indicates a plied thereto. Fig. 2 is a perspective view disk of hardrubber or insulating material showing the various parts of the couplingin having holes 1 1 also corresponding to the disassociated relation.holes 10 of the member 6. 5 In the use of the acousticon and all sirni-In assembling the device for use it is lar apparatus where a pluralityof telephonemerely necessary to place the plates 6 and 7 receivers aregrouped together in a multiple together, with the disk 13 intermediatetheir circuit, so as to receive and multiply the sound opposed faces,and insert screws through the to the greatest possible extent, it is ofprime alined holes, so as to hold the members in 9 importance to havethe electrical connections the position shown in Fig. 1, with'theirreperfect in order to preserve the lowresist spective arms alternatingone ,another. ancc character of the circuit ordinarily em- The variousreceiver-terminals 4 arenow ploycd. It is not less important to have theconnected to the arms 9 of the lower plate, various instrumentsseparately removable while the terminals 5 are secured to the arms 9 5for the purpose of adjustment or in order to 6 I have shown screws 15for making the substitute a new instrument. It is als a deconnection;but it is obvious that the wires sirable to have the connections neatii: apmay be soldered to the arms, if desired. pearancc and. not 1i bleto become grounded The battery or line wires are indicated at orshort-circuited by wear or careless inanipu- 16 and 17 and arerespectively connected to I00 embodying theprinciple's of invention andwhich serve as a connecting means'for disassociated when desired withouttrouble.

A further obj ect'of the invention is to make lation.

In carrying out my invent on 1 make use of fixtures speciallyconstructed to accomplish the above purposes and which are asthe arms 8and 9.

By the above arrangement it will be'evi dent thatl secure a connectionwhich is efiicient and permanent under ordinary cirdrawings, in whichlike 5 5 arms,

cumstances, but which of the various receivers What claim is 1. Anelectric connection comprising a pair of plates havingrigidly-projecting arms integral therewith, said plates being insulatedfrom one another.

2. An electric connection for receivers in comprising a pair of metallicpl 7 arms integral therewith, an insulating-disk between said plates,means for holding the plates in such relation, and means for connectingthe receivers to said arms.

3. An electric connection for receivers in an acousticon, comprising apair of metallic pl permits the removal when desired. tl

other, to the venous translating devices.

an acousticon, comprising a pair of metallic i In witness whereof Isubscribe my si naplates each having a pair of openin s and hire in thepresence of two witnesses. having radial arms, an insulating-disk be--HOWELL W. IIAFF.

HARRY BLAUNER, DOROTHY MANNING.

